The SQ171 coating can be applied on standard or special bearings to guarantee a significantly longer service life compared to uncoated parts. The thin coating of about 8 µm ensures interchangeability of coated and uncoated parts. Due to the plating process by trivalent chrome passivation the coating contains no toxic hexavalent chrome or Cr(VI) a material banned by the RoHS Directive. The SQ171 coating has been tested with the neutral salt spray test method in accordance with DIN 50021. Compared to other anti-corrosion methods such as stainless steel, NKE's SQ171 coating offers outstanding anti-corrosion protection at relatively low cost.
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